Noncarious cervical lesions (NCCLs) are characterized by the loss of tooth structure in the cervical region of the tooth without bacterial involvement, also known as tooth wear, which may be initiated by erosion, abrasion, abfraction or may have a multifactorial origin. [1][2][3] After identify and treat the etiological factor, sometimes restorations are necessary to protect the remaining dental structure, decrease mineral loss and hypersensitivity and finally, reduce plaque accumulation. [1,4] Adhesive restorations in cervical, noncarious, and nonretentive cavities are used as a clinical model for the evaluation of adhesive systems, as recommended by the American Dental Association. [5] This is because cervical lesions do not have macro mechanical retentions and because they are widely available in patients with better hygiene habits than the average. [6] These lesions require at least 50% of adhesion in dentin and are usually found on anterior teeth and premolars with good access for restoration. An inefficient adhesion usually results in loss of restoration, considered the better clinical parameter used by clinical studies. [7] Usually, there is two strategies for the use of adhesive systems: to totally remove the smear layer with the previous acidic conditioning followed by the application of a primer and an
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